Thus, the NEQ regime in the spheroid wake at \(\mbox{\textit {Fr}}= 2\)  is significantly shortened compared to the disk wake, with it starting at \(Nt \approx \pi \)  and ending early at \(Nt \approx 15\)  when Q2D commences. In the experiments of [1]}, the NEQ regime is reported to last until \(Nt\approx 40\) . Other temporal studies have found that the span of the NEQ regime depends on the Reynolds number. For example, in temporal simulations, [2]} found an increase of the NEQ duration to \(Nt \approx 50\)  when the Reynolds number increased to \(=10^5\) . [3]} found a transition to a Q2D-type power law at \(Nt\approx 100\) . Only [4]} observed an earlier transition around \(Nt \approx 25\) . The reasons behind the early arrival of the Q2D regime in the spheroid \(\mbox{\textit {Fr}}= 2\)  wake will be discussed in §5.
